github.com/amazechain/amc@v0.1.3/internal/network/error.go (about)

     1  // Copyright 2022 The AmazeChain Authors
     2  // This file is part of the AmazeChain library.
     3  //
     4  // The AmazeChain library is free software: you can redistribute it and/or modify
     5  // it under the terms of the GNU Lesser General Public License as published by
     6  // the Free Software Foundation, either version 3 of the License, or
     7  // (at your option) any later version.
     8  //
     9  // The AmazeChain library is distributed in the hope that it will be useful,
    10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    12  // GNU Lesser General Public License for more details.
    13  //
    14  // You should have received a copy of the GNU Lesser General Public License
    15  // along with the AmazeChain library. If not, see <http://www.gnu.org/licenses/>.
    16  
    17  package network
    18  
    19  import (
    20  	"errors"
    21  )
    22  
    23  var (
    24  	badMsgTypeError        = errors.New("p2p: message type is invalid")
    25  	badLengthEncodingError = errors.New("p2p: remaining length field exceeded maximum of 4 bytes")
    26  	badReturnCodeError     = errors.New("p2p: is invalid")
    27  	dataExceedsPacketError = errors.New("p2p: data exceeds packet length")
    28  	msgTooLongError        = errors.New("p2p: message is too long")
    29  	packageMsgError        = errors.New("p2p: package message error")
    30  	notFoundPeer           = errors.New("p2p: not found peer info")
    31  )
    32  
    33  type panicErr struct {
    34  	err error
    35  }
    36  
    37  func (p panicErr) Error() string {
    38  	return p.err.Error()
    39  }
    40  
    41  func raiseError(err error) {
    42  	panic(panicErr{err})
    43  }
    44  
    45  func recoverError(existingErr error, recovered interface{}) error {
    46  	if recovered != nil {
    47  		if pErr, ok := recovered.(panicErr); ok {
    48  			return pErr.err
    49  		} else {
    50  			panic(recovered)
    51  		}
    52  	}
    53  	return existingErr
    54  }